Naoki Yamamoto, A. Utsumi, Kiyoshi Fujimoto, Shinji Abe, N. Matsuo
{"title":"Gaze-reactive brightness control of car onboard display for ensuring visibility during night driving","authors":"Naoki Yamamoto, A. Utsumi, Kiyoshi Fujimoto, Shinji Abe, N. Matsuo","doi":"10.1109/ITSC.2011.6083001","DOIUrl":"https://doi.org/10.1109/ITSC.2011.6083001","url":null,"abstract":"In this study, we proposed gaze-reactive brightness control of car onboard displays to ensure driver visibility and explored the method's effectiveness. In Experiment 1, we investigated the effect of an onboard display light for visibility and confirmed our proposed method's effectiveness. In Experiment 2, we developed the method presented in Experiment 1 and further explored its effectiveness under settings close to those for an actual onboard display and driving operations. The results indicated the effectiveness of gaze-reactive brightness control at maintaining visibility for both onboard displays and dark outside fields. We also investigated the impressions and psychological effects of our proposed method to evaluate its acceptability and application potential. The questionnaire results showed better impressions and positive emotional states of users when the method was used. The present results showed that the gaze-reactive brightness control of onboard displays helps drivers maintain visibility and provides positive psychological effects.","PeriodicalId":186596,"journal":{"name":"2011 14th International IEEE Conference on Intelligent Transportation Systems (ITSC)","volume":"272 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114245118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A study on multi-resolution scheme of macroscopic-microscopic traffic simulation model","authors":"Jian Ma, Jian Sun, Keping Li, Liyan Zhang","doi":"10.1109/ITSC.2011.6083058","DOIUrl":"https://doi.org/10.1109/ITSC.2011.6083058","url":null,"abstract":"Multi-Resolution traffic flow schemes, coupling a microscopic (vehicle based), mesoscopic (cell based) and macroscopic (flow based) representations of traffic flow may be a useful tool to better understand and utilize the relationships between the various types of representation. The paper proposes a new classification of traffic model which is according to the representation scale and the behavioural law firstly. In addition, it shows that the LWR model which is a macroscopic continuum model can be numerically solved in Weighted Essentially Non-Oscillatory (WENO) scheme. Furthermore, the paper mainly studies the hybrid scheme which can couple a macroscopic model (LWR) and a microscopic model (Wiedemann). Simple transformation methods are analyzed to translate the variables parameters between both models. Finally, simulation results show that two shock waves (stopping-starting wave) can propagate along two models differently described. The hybrid scheme can keep the result consistency between the both models.","PeriodicalId":186596,"journal":{"name":"2011 14th International IEEE Conference on Intelligent Transportation Systems (ITSC)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114419609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Ploeg, Bart Scheepers, E. V. Nunen, N. Wouw, H. Nijmeijer
{"title":"Design and experimental evaluation of cooperative adaptive cruise control","authors":"J. Ploeg, Bart Scheepers, E. V. Nunen, N. Wouw, H. Nijmeijer","doi":"10.1109/ITSC.2011.6082981","DOIUrl":"https://doi.org/10.1109/ITSC.2011.6082981","url":null,"abstract":"Road throughput can be increased by driving at small inter-vehicle time gaps. The amplification of velocity disturbances in upstream direction, however, poses limitations to the minimum feasible time gap. String-stable behavior is thus considered an essential requirement for the design of automatic distance control systems, which are needed to allow for safe driving at time gaps well below 1 s. Theoretical analysis reveals that this requirement can be met using wireless inter-vehicle communication to provide real-time information of the preceding vehicle, in addition to the information obtained by common Adaptive Cruise Control (ACC) sensors. In order to validate these theoretical results and to demonstrate the technical feasibility, the resulting control system, known as Cooperative ACC (CACC), is implemented on a test fleet consisting of six passenger vehicles. Experiments clearly show that the practical results match the theoretical analysis, thereby indicating the possibilities for short-distance vehicle following.","PeriodicalId":186596,"journal":{"name":"2011 14th International IEEE Conference on Intelligent Transportation Systems (ITSC)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116677151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A novel approach based on a distributed dynamic graph modeling set up over a subdivision process to deal with distributed optimized real time carpooling requests","authors":"M. Sghaier, H. Zgaya, S. Hammadi, C. Tahon","doi":"10.1109/ITSC.2011.6082983","DOIUrl":"https://doi.org/10.1109/ITSC.2011.6082983","url":null,"abstract":"Years ago, researchers started spending efforts in carpooling domain leading to many systems. Those systems are either operating or not and even if some of them succeeded, they still need improvement. As optimization and dynamicity are the most lacking aspects, we are interested in setting up an optimized dynamic carpool service. This problem's high complexity constitutes a big handicap through the way to perform efficient process. Consequently, it is here addressed based on a decentralized parallel requests' process and a distributed architecture is adopted. In this context, we propose a subdivision principle in order to decompose the served network and establish a Distributed Dynamic Graph. The latter models the available information about passengers and drivers and helps to establish a distributed parallel process. In addition, the multi-agent concept has been adopted to set up an automated framework where several communicating entities evolve and perform requests' management.","PeriodicalId":186596,"journal":{"name":"2011 14th International IEEE Conference on Intelligent Transportation Systems (ITSC)","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116762077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Micro-simulation study on capacity of roundabout","authors":"Haorui Li, Jiabin Li, Zhuo Yang, Jiawei Wu, Xu-mei Chen","doi":"10.1109/ITSC.2011.6082918","DOIUrl":"https://doi.org/10.1109/ITSC.2011.6082918","url":null,"abstract":"This paper presented a micro-simulation method on estimating the capacity of roundabouts. First, five related factors were tested in the VISSIM model. Then, four out of five factors that show significant correlation with the capacity were chosen for calibrating the Capacity Correction Coefficient. Finally, the results were compared with other studies, showing that the revised model had the smallest relative error. In sum, these findings are helpful for the planning and management of roundabouts.","PeriodicalId":186596,"journal":{"name":"2011 14th International IEEE Conference on Intelligent Transportation Systems (ITSC)","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124497474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Energy saving for automatic train control in moving block signaling system","authors":"Q. Gu, Xiaobo Lu, T. Tang","doi":"10.1109/ITSC.2011.6082964","DOIUrl":"https://doi.org/10.1109/ITSC.2011.6082964","url":null,"abstract":"With rapid development of the railway traffic, the moving block signaling system (MBS) method has become more and more important for increasing the track capacity by allowing trains to run in a shorter time-headway while maintaining the required safety margins. In this framework, the tracking target point of the following train is moving forward with its leading train. This paper focuses on the energy saving tracking control of two successive trains in MBS. Nonlinear programming method is used to optimize the energy saving speed trajectory of the following train. The real-time location of the leading train could be integrated into the optimization process. Due to simplicity, it can be used for online implementation. Finally, a smoothing algorithm is proposed to improve the speed trajectory for ride comfort. The feasibility and effectiveness are verified through simulation. The results show that the new method is efficient on energy saving with guaranteed ride comfort even when disturbances present.","PeriodicalId":186596,"journal":{"name":"2011 14th International IEEE Conference on Intelligent Transportation Systems (ITSC)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124725616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Evaluation of Boosting-SVM and SRM-SVM cascade classifiers in laser and vision-based pedestrian detection","authors":"Oswaldo Ludwig, C. Premebida, U. Nunes, R. Araújo","doi":"10.1109/ITSC.2011.6082909","DOIUrl":"https://doi.org/10.1109/ITSC.2011.6082909","url":null,"abstract":"Pedestrian detection systems constitute an important field of research and development in computer vision, specially when applied in protection/safety systems in urban scenarios due to their direct impact in the society, specifically in terms of traffic casualties. In order to face such challenge, this work exploits some developments on statistical machine learning theory, in particular structural risk minimization (SRM) in a cascade ensemble. Namely, the ensemble applies the principle of SRM on a set of linear support vector machines (SVM). The linear SVM complexity, in the Vapnik sense, is controlled by choosing the dimension of the feature space in each cascade stage. To support experimental analysis, a multi-sensor dataset constituted by data from a LIDAR, a monocular camera, an IMU, encoder and a DGPS is introduced in this paper. The dataset, named Laser and Image Pedestrian Detection (LIPD) dataset, was collected in an urban environment, at day light conditions, using an electrical vehicle driven at low speed. Labeled pedestrians and non-pedestrians samples are also available for benchmarking purpose. The cascade of SVMs, trained with image-based features (HOG and COV descriptors), is used to detect pedestrian evidences on regions of interest (ROI) generated by a LIDAR-based processing system. Finally, the paper presents experimental results comparing the performance of a Boosting-SVM cascade and the proposed SRM-SVM cascade classifiers, in terms of detection errors.","PeriodicalId":186596,"journal":{"name":"2011 14th International IEEE Conference on Intelligent Transportation Systems (ITSC)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121418969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Selective solution pool pruning in multi-agent optimization systems for the transit route network design problem","authors":"J. Blum, Scott E. Edsell","doi":"10.1109/ITSC.2011.6083127","DOIUrl":"https://doi.org/10.1109/ITSC.2011.6083127","url":null,"abstract":"Agent optimization systems have been used to find near optimal results for many intractable problems, including the Traveling Salesman problem and the Transit Route Network Design (TRND) problem. In the agent architectures used for these problems, agents collaborate by working with a common pool of solutions, creating, modifying, or destroying solutions in this pool. It has been posited that “adept destruction can compensate for inept construction” in these optimization systems [1]. This paper proposes a Selective Solution Pool Pruning agent that manages the diversification and intensification of the agent search process. This agent is instantiated for a system that is designed to optimize the TRND problem for a de facto benchmark transit network. The optimization system results show the Selective Solution Pool Pruning agent provides an effective means for managing the search process.","PeriodicalId":186596,"journal":{"name":"2011 14th International IEEE Conference on Intelligent Transportation Systems (ITSC)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124197681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"An emergency evasive maneuver algorithm for vehicles","authors":"D. Soudbakhsh, A. Eskandarian, J. Moreau","doi":"10.1109/ITSC.2011.6083131","DOIUrl":"https://doi.org/10.1109/ITSC.2011.6083131","url":null,"abstract":"In this paper a collision avoidance algorithm based on the driver's input is presented. In a near collision situation many drivers try to avoid the obstacle by steering; however, there are many instances that they cannot perform a successful avoidance maneuver, since some may steer too much and go off the road, and others may not steer enough and collide with the obstacle. In this research, an algorithm for activating a collision avoidance system based on the driver's input is presented and tested on human subjects in a car driving simulator.","PeriodicalId":186596,"journal":{"name":"2011 14th International IEEE Conference on Intelligent Transportation Systems (ITSC)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125338680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Development of lane change driver model for closed-loop simulation of the active safety system","authors":"Taeyoung Lee, Beomjun Kim, K. Yi, C. Jeong","doi":"10.1109/ITSC.2011.6083039","DOIUrl":"https://doi.org/10.1109/ITSC.2011.6083039","url":null,"abstract":"In this paper, the integrated lane change driver model was proposed and used in simulations of closed loop simulation of the ESC system. Through the lane change experimental data, the driver's characteristics can be obtained and analyzed. By using the lane change steering input and the lane following steering input with weighting factors, lateral driver model is operated steering action to change or follow the lane. Also, simulation results of the proposed lane change model are compared with the experimental test data, and closed loop evaluation was conducted with ESC system. It has been shown that the proposed integrated lane change driver model can control a vehicle very similar to human manual driving in lane change situations and can represent a normal driver's driving motion. Consequently, the proposed driver model presented in this study can be used into a closed-loop simulation and development of the vehicle's intelligent safety system.","PeriodicalId":186596,"journal":{"name":"2011 14th International IEEE Conference on Intelligent Transportation Systems (ITSC)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129326997","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}